Automatic burner



Aug. 30, 1932. E, KRISE 1,874,312

AUTOMATIC BURNER Filed March 7. 1950 2 Sheets-Sheet 1 ATTORNEY A -{1. 1932;; E SE 1,874,312

1 AUTOMATIC BURNER Filed march 7, 1950 2 Sheets-Sheet 2 azzmrdM/frz'se INVENTDR ATTORNEY Patented Aug. 30, 1932 i i p a v UNITED STATES P NT: OFFICE- 2 EnwAan m naret; or waxesnuine, PENNSVYL'VANIIA i I Application med March 7, 1930. Serial mt. 434,135.

The object of this invention is the pro'vi- In Figure l of the drawings, the numeral sion of an automatic fuel saving and c'ombus- 1 designates the casing of afurnace orlike tion increasing apparatus for boilers, furheating plant, 2 the ash pit, 3 the grate, L the naces and other heating plants in which the f doorfor the ashpit and 5 the door for the 5 draft to the plant is retarded by partly closmbustion chamber. 7 ing the chimney dampers and wherein a In carrying out my invention I arrange on forced draft is created in the ashpit for forethe supporting floor for the heating plant 1, ing air into the combustion chamber to mix at a suitable distance therefrom a motor 6 with th gases f mb ti n as th are whlch is preferably electrically driven. v The w erated so that the latter'will' ignite and burn ha t 7 for e m r is extended gh the 60 and such burning gases, by the draft in the OPPOSltG Sides Of the casing for the IDOtOI.

chimney ta k will lt i a ro er co On, one end of the shaft 7 there is fixed a fan b ti n d id bl i i f l which ispreferably electrically driven. The consumption. housmg 1s ofcast iron or pressed steel and is- A further object is the provision of a fuel fastened statlonary to the motor casing by a 7 65 saving and combustion increasing apparatus P e 1 Which has on its outer face equidisin which fans are operated by a motor, the an ly Spaced concavcd lugs 11 which are exoutlet of both of such fans being valve con-. tended 0V6! the bearing 12 for One end of trolled, and the outlet of one of the fans bethe Shaft an arranged o as to receive directed into the ashpit, the utlet for through OPGIllIlgS therein bOltS 13 that pI'O the second fan having a flexible pipe. con 1 om t eside f motor ng; he

nected thereto which is directed to the fuel Sald lts helng engaged by suitable nuts. door for the combustion chamber of the heat- The {fi endhf the hou ing 9 has a square ing plant and which has fixed on its end a p g ln urrounded by a flange 1e spray nozzle, the chamberfor the last menf h Qh p g pr vldes an air intake.

' tloned fan providing a receptacle for a quanh u g at e from; ereof is provided tit f Water h b th i Sprayed i t wltha round opening surrounded by an voutthe combustion chamber ishumidified to aid h ip p The p s g r g hi pip in the consumption of the fuelin such cham- 1S controlled y a p y Supported disc her and further wherein the device is suss Valve 16 hat has'on itsshaft binding means pended on springs attached to a suitable 17 holdmg the Valve 111 P P T angular frame so as to eliminateasmuchas possible Posltlon g l the tfl w of. air

any noise made by thevibration of the motor Q g h g; The Pip 15 has h i operation 7 a flexible o1nt COIIIIBCtlOIl 18 with a pipe 19. For a full and comprehensive understandt pa e t r an Opening in the (1001 ing of the improvement, reference is to be 4: and W h P P e ash pit 2. When h d t th d i hi h accompany nd the motor s n operation the fan is revolved f t f thi li ti I to draw air nto the housing and to force I th d i I 1 i such air through the outlet pipes 15 and 19 Figure 1 is an end elevation of the impro into the ashplt 2 tocreate a; forced draft into ment in operative position, the heating plant t e ash P and for gl a P P I b i i ti I g v amount of such forced draft through the Figure 2 is a View of the improvement grate 3 for g h g g into the Combusl ki g t d th Second nd th f, t1on chamber 20 of the furnace or plant. The

Figu 3 i to l i w ith p t amount of air thus delivered is, of course, broken away and parts in section. regulated by the adjustment of the disc valve Figure 4 is a transverse sectional viewap- 16 as heretofore stated. proximately on the line 4-4; of Figure 1 On the opposite or second end of the motor Figure 5 is a side-elevation with -parts in casing there is another fan 21 enclosed in a a0 tio of the nozzle pipe. housing 22 that is smaller in proportion to t the housing 9. The housing 22 is made of cast iron or pressed steel and is bolted to the motor casing 6 through the medium of spaced concaved lugs 23 in the same manner as the housing 9 is connected to the said motor casing. The lugs 23, however, are not connected to a plate similar to the plate 10 but areintegrally formed with the side of the housing The outer end of the -housing 22 isopento permit of the arrangement of the fan 21 on the end of the motor shaft 7, but thiszendds. thereafter closed by a plate 2.4 which is bolted to the housing 22. plate 24"has a square opening therethrough surrounded. by

an, outwardly directed flange 25. and. this openingprovides any air. inlet tothe housing. 22. The housing 22 has a deepenedibottoma portion which affords a welhfor a quantity fwater26 and the level ofthe Water. is arranged directly in a line-with the lower blade of the fan 21 or slightly therebelow, The air.

circulated by the fan.2,1, is directed fromthe housing 22 through an outlet pipe 27 and the passage through this pipe is controlled by a disc valve or. damper 28. The pivotfor, the valve has an. offset end in the nature of a handle through which isscrewed a binding element 29 to contact with the pipe .27 and for regulating the adjustment of the valve or damper 28.

Connected to'the end of the outlet spout or pipe 27 there is one endlof a flexible tubeor pipe 30, the secondend ofthe saidpipe. being connected to a short pipe 31that -is directed'through asuitable openingin thejdoor 5. A coupling 32 isarranged upon-the pipe 31 to close the opening in the door through. whichthe said pipe passes. The endof the. short pipe 31 has screwed thereon a U, -co.u--

pling 33 in whose end there isscrewed a nozzle pipe 3 1. The nozzle pipe. is-provided with aseriesof apertures 35, and the outer endof.

' combustion chamber and this air mixinggwith the gas generated from the coal willmixwith such gas and thereby produce acomplete come bustion- It is tobe understoodthat the dam.- per smoke outletipipe for the, heatingplant is closed. and it will be obvious that gases which naturally escape through such pipe or stack will be burned with the result that with the improvement a proper combustion and a considerable savingincoal consumption isobtain'ed. It is, of course, to be understood that the damper of the smoke outlet pipe is of the usual construction, that is, the same is provided with openings for the passage of noxious gases and such gases are drawn out of the outlet pipe by the draft created therein, which draft is accelerated by the draft in the ash box and'in'the fire box created by the fans of the improvement:

In order to eliminate as far as possible noise created-bythe motor and the fans in the operation thereof, and which noises would be prominently apparent were the motor and fan arranged upon a stationary support, the motor andfanhousings are fixed in an inner open substantially rectangular metal frame 37, and the frame 37 is arrangedin an outer open substantially rectangular frame 38. Between the-inner corners of the frame 88 and the outer corners of the frame 37 there are secured the ends of strong coiled springs39, and'these springs flexibly support the inner motor and fan housing supporting frame 37. The outer frame is reinforcedby suitable angle braces 40. In order that. all of the gases contained in the coal may be consumed, the coal is al ways built'in the'rear of "a smallsized furnace or boiler; The thicker. or'heavier the coal at the sides sloping down to the center or at the fire door the more gases derived'from the coal. It is, of'course, not the-coal, after being heated to a red heat that furnishes the heat to the building inwhich the device is installed but it isthe gases-forced up through the coal from the burning coal'all over-the firebox that-furnishes heat for the burner. By slowlyexposingthe coalthrough the center or. front, the coalnaturally burns until the nextfiring, and all of the hot coals are raked to the center ofthe furnace. Then after the furnace'is againfilled with fresh coal it may be left for hours at a time. It is to be noted that there is always left red hot coals at the center of the fire box orat the end thereof. These coals produce what may be termed a pilot light; The housingon-the end of the mol tor, shaft causes-the gasesto be heated and burned, and'by havingthis fanseparate and independent from-the fan that furnishes air for the ashpit acomplete control over the air that goes into the fire box'is afforded. Therefore, it' is essential that-air in the fire box be controlledby a-fan motor other than the fan that furnishes air tothe ash pit. A sufficient amount of air at all times is required in the fire box at the same time that moistened air is deliveredto the-ashpit:

It is believed that the construction and operation of my improved automatic fuel saving and combustion increasing. apparatus for heating plants will be understood andappreciated so that further detailed descriptionwill not be required but obviously I do not wish to be restricted to the precise-details herein set forth and,-therefore,- holdmyself entitled to make such changes therefrom as fairly fall within the scope of what I claim.

Having described the invention, I claim:

1. A fuel saving and combustion increasing apparatus for heating plants in which the smoke outlet of such plant is provided with a partially open damper, comprising a motor, a fan driven thereby having a pipe connection with the ash pit of the heating plant for creating a forced draft therein, a second fan also driven by said motor and having a pipe connection with the combustion chamber of the plant and provided with an apertured nozzle which is arranged in the combustion chamber, a housing containing water and the Water in the housing being acted upon by the last mentioned fan.

2. A fuel saving and combustion increasing apparatus for heating plants in which the smoke outlet of such plant is partly closed by a damper, comprising a motor, a fan driven thereby having a pipe connection with the ashpit of the heating plant for creating a forced draft therein, a second fan also driv en by said motor and having a pipe connection with the combustion chamber of the plant and provided with an apertured nozzle which is arranged in the combustion chamher, a housing containing water which is contacted by the blades of the last named fan at the revolution thereof, a hand operated damper controlling the passage through the pipe and yieldable supporting means for the motor and fan. 7

3. A fuel saving and combustion increasing apparatus for heating plants having ash pits and in which the smoke outlet for the plant is partly closed, comprising a motor having a drive shaft extending from the ends thereof, housings fixed to but spaced from the sides of the motor casing, said housings having air inlet openings in their outer sides, a fan in each housin fixed on the ends of the motor shaft, a va ve controlled air outlet for each housing, a ipe having a vflexible connection with one 0 such outlets and received in the ashpit of the heating plant, the second housing having a deepened bottom providing a water receptacle, a flexible pipe connected to the outlet of the said housing, a short pipe directed through'the fuel door of the combustion chamber of the heating plant and to which the flexible pipe is connected, an angularly arranged apertured 7 nozzle pipe coupled to the short pipe and arranged in the combustion chamber and said nozzle pipe having its outer end closed.

In testimony w ereof I affix my si nature.

EDWARD W. K ISE. 

